For me, the little things in a game is what i like most about it, not its main plot, or its graphics, morrowind was a GREAT game, but i think i had WAY more fun playing oblivion, the battles are better, casting spells is easier, and theres less skills
im morrowind there is a mace skill, blunt skill, longsword skill, shortsword skill, light armor, medium armor, heave armor...and so on, oblivion has sword, blunt, heavy armor, light armor...boom, less skills to worry about.
ALTHOUGH Morrowind did have a more veriety of armors and weapons (to me)
Plus you can enchant your own stuff for free on morrowind, just make a spell to increase ur enchant by alot.
OBIVION does have a fast travel...which makes the game 10 TIMES less boring, because if you had to go somewhere outside of slit-strider paths, you were walking everywhere...got really boring...
Oh, i almost forgot, morrowinds people dont talk to you, you just click everything, oblivions characters always talk to you, but some people dont like the talking...like i said, its the little things
So you decide which one you like better...i cant decide for you